(KMOV) -- A blaze caused extensive damage to a north St. Louis warehouse late Monday night.
According to St. Louis firefighter Captain Garon Mosby, crews responded to a call to the 3900 block of Union Blvd. just before 11 p.m.
Upon their arrival, firefighters found an industrial-sized dumpster inside the warehouse engulfed in flames.
Firefighters got the blaze out before it could spread. They then ventilated the building to remove the heavy smoke.
Five employees who were inside the warehouse when the fire broke out escaped without injury.
The cause of the fire is under investigation.